package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class LambdaDemo {
    public static void main(String[] args) {
        List<String> list= new ArrayList<>();
        Collections.sort(list, new Comparator<String>() {
            public int compare(String o1, String o2) {
                return o1.length()-o2.length();
            }
        });
        // lambda表达式
        Collections.sort(list,(o1,o2)->o1.length()-o2.length());

        List<Point> list1=new ArrayList<>();
        Collections.sort(list1, new Comparator<Point >() {
            @Override
            public int compare(Point o1, Point o2) {
                return o1.getX()-o2.getX();
            }
        });
        // lambda表达式
        Collections.sort(list1,(o1,o2)->o1.getX()-o2.getX());
    }
}
